<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        h1{
            color: green;
        }
    </style>
</head>
<body>
    <h1>注册成功</h1>
    <p>嘿嘿</p>
</body>
</html>